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Finding the Fourth Proportional to 73,883.70, 110,825.55 and 42,702.90

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Solution

The fourth proportional to 73,883.70, 110,825.55 and 42,702.90 is: 64,054.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,883.70 : 110,825.55 = 42,702.90 : x
  2. Step 2: Convert to fraction form
    73,883.70/110,825.55 = 42,702.90/x
  3. Step 3: Cross multiply
    73,883.70x = 110,825.55 × 42,702.90
  4. Step 4: Simplify right side
    73,883.70x = 4,732,572,379.10
  5. Step 5: Solve for x
    x = 4,732,572,379.10/73,883.70
  6. Step 6: Final answer
    x = 64,054.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.